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3 Mechanics

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Question 59

A train starts from rest and accelerates uniformly to speed V m s−1V\text{ m s}^{-1}V m s−1 in 20 s. It maintains this speed for T T\,T s and then decelerates uniformly to rest in 30 s. The train travels 2.55 km in a total time of 110 s.

a.

Find TTT.

[1]
b.

Find VVV.

[4]
c.

Find the magnitude of the deceleration during the final stage.

[2]
Markscheme

3 Mechanics Questions

  1. A Level
  2. /Maths
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